History of Europe

What is the most likely reason Bismarck was named chancellor when King Wilhelm I became kaiser of Germany?

Bismarck was named Chancellor when King Wilhelm I became Kaiser of Germany because he had proven himself to be a remarkably skillful politician and diplomat during his time as Prussian foreign minister. He was largely responsible for the unification of Germany and had developed a reputation as a cunning negotiator and strategic thinker. His experience and abilities made him the ideal choice for the position.